Question

Where does organic material in coal mostly come from?

1) Decaying plants and animals
2) Volcanic eruptions
3) Underground water sources
4) Meteorite impacts

Answer 1

Organic material in coal comes from decaying plants of ancient swamp forests, transformed by high temperatures and pressures into coal over millions of years.

Step-by-step explanation:

The organic material in coal mostly comes from decaying plants that lived hundreds of millions of years ago. Coal is a type of fossil fuel that was formed from the remains of vast swamp forests during the Carboniferous Period. Over time, these plant materials were buried and subjected to high temperatures and pressures, which gradually transformed them into coal. There are four main types of coal, including anthracite, bituminous, subbituminous, and lignite, which differ in carbon content and the amount of heat energy they can produce.